Note 6 - Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property and equipment	$ 28,831	$ 27,954
Less - accumulated depreciation	26,083	24,770
Depreciated cost	2,748	3,184
Computer Equipment [Member]
Property and equipment	22,139	21,465
Office Furniture and Equipment [Member]
Property and equipment	1,471	1,429
Leasehold Improvements [Member]
Property and equipment	$ 5,221	$ 5,060

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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